Sat, 30 May 2026 18:27:56 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7976#Comment_7976 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7976#Comment_7976 Mon, 15 Oct 2007 20:05:45 +0100 oiseaux https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7977#Comment_7977 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7977#Comment_7977 Mon, 15 Oct 2007 20:08:53 +0100 oiseaux https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7978#Comment_7978 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7978#Comment_7978 Mon, 15 Oct 2007 20:25:48 +0100 biffvernon ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7979#Comment_7979 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7979#Comment_7979 Mon, 15 Oct 2007 20:35:18 +0100 Mike George https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7981#Comment_7981 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7981#Comment_7981 Mon, 15 Oct 2007 21:22:51 +0100 ted http://www.uvalue.ie/html/pdfs/actis/Trisolaine_data_sheet.pdf]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7999#Comment_7999 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=7999#Comment_7999 Tue, 16 Oct 2007 07:46:04 +0100 biffvernon https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8004#Comment_8004 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8004#Comment_8004 Tue, 16 Oct 2007 08:55:38 +0100 ted ]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8014#Comment_8014 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8014#Comment_8014 Tue, 16 Oct 2007 14:32:14 +0100 fostertom Posted By: biffvernonwhat do the "4 internal reflective films" do?Not that old question again! It's been answered - the answer is 'plenty'. I did suspect you weren't paying attention!]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8020#Comment_8020 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8020#Comment_8020 Tue, 16 Oct 2007 17:14:01 +0100 tony https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8025#Comment_8025 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8025#Comment_8025 Tue, 16 Oct 2007 19:37:58 +0100 biffvernon https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8033#Comment_8033 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8033#Comment_8033 Tue, 16 Oct 2007 20:50:13 +0100 James Norton
Would pseudoscience include the under-cafetiere-test-method..?

Seriously though, I'm sure I came across some research once which looked at typical installations of rigid foam (gaps, loose boards, broken boards, missing boards etc all included) and produced some U-values... But can't for the life of me remember where. Has anybody else come across these tests would be great to get my hands on the results again, its bugging me that I cant find it...

J]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8037#Comment_8037 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8037#Comment_8037 Tue, 16 Oct 2007 21:02:39 +0100 Mike George https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8284#Comment_8284 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8284#Comment_8284 Mon, 22 Oct 2007 08:47:40 +0100 sparrow
Biff, the internal layers will have some effect (see my post http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=125&page=5#Item_15 ). The effect of the internal layers is largest for rapid temperature fluctuations ("high frequencies"). But at those higher frequencies, the transmittance is much lower anyway than it is in the steady-state, so the additional benefit of the inner layers is partly academic. One really has to do the calculations for specific examples to be sure about what is important and what is not - there are no "black or white" answers, unfortunately.]]> https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8293#Comment_8293 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=766&Focus=8293#Comment_8293 Mon, 22 Oct 2007 12:32:39 +0100 fostertom